Which phrase does the author use to convey the idea that the scientists' work was treacherous

faith or loyalty when pledged in a solemn agreement or undertaking.

the teacher i would like to have must be a kind, caring and understandable teacher. she should be interactive with us and always plan fun activities to in our studies. she should be a teacher who would correct our mistakes when we do something wrong and guide us if we are weak. she should always be strict if we do something bad but must be praising us when we do something good. she she not take any as her favorite in her class but take everyone as her favorite.

(i hope this will u if there is something send me a reply)

to refer to another writer's ideas in the course of making your own original statement. when you use a summary in the course of your own writing, you must use your be used in book reviews (see chapter 8), in essays of analysis (see, nection between sentences, and you can create new paragraphs to reflect